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EC number: 205-324-8
CAS number: 138-32-9
An OECD 202 study was conducted to evaluate the acute toxicity of the
read-across substance C12-18 TMAC (active ingredient 33%) to Daphnia
magna under static conditions. Daphnia magna (10 per dose) were exposed
to the test substance at nominal concentrations of 236, 394, 667, 1,091,
1,818 and 3,030 µg/L for 48 hours and mortalities were determined. The
48 hour EC50 and 95% confidence interval were calculated by probit
analysis as 280 (250 - 300) µg/L. No analytical determination of the
test substance was performed. The NOEC was < 236 µg/L, the lowest tested
concentration. Based on the results, the 48 hour EC50and NOEC were 280
and <236 µg/L, (i.e., equivalent to 0.09 and <0.08 mg a.i./L),
The NOEC was < 236 µg/L, the lowest tested concentration. Based on the
results, the 48 hour EC50 and NOEC were 280 and <236 µg/L, (i.e.,
equivalent to 0.09 and <0.08 mg a.i./L) , respectively (Surprenant DC,
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